The principal part of aluminous handle Cover Cushioning / The principal part of plastic handle Cover Cushioning.

  The principal part of aluminous handle Cover Cushioning / The principal part of plastic handle Cover Cushioning

  The principal part of Cover Cushioning is designied according to the principium of hydraulic pressure damper which is the single-direction hydraulic pressure damper ,When the principal axis  circumgyrate after stressed ;the hydraulic pressure damper of the internal principle part will adjust the the size of the damper according to the outside acting force automaticly then keep the keyboard falling at a  uniform speed.According to the material difference we divided them into two types : aluminous handle Cover Cushioning, plastic handle Cover Cushioning For the structure difference